Frequency stabilizing device
US5461645A · kind A · utility
70Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | May 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J7/065
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An intermediate frequency (IF) converter converts a received signal to an IF signal. A demodulator demodulates the IF signal to a demodulated signal and detects a phase error. A frequency error detector detects a frequency error based on the phase error. A modulated-carrier detector detects a modulated carrier component from the IF signal. When the modulated carrier component is detected, a controller achieves a frequency stabilizing operation based on the frequency error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.